New paper notes long-term climate change may be 'inherently unpredictable'

The Hockey Schtick
"A paper published today in the Journal of the Atmospheric Sciences reveals the abject failure of climate models to project either the transient or long-term ["equilibrium"] climate change from greenhouse gases. The paper notes, "The Equilibrium Climate Sensitivity (ECS) has a large uncertainty among models participating in the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) and has recently been presented as “inherently unpredictable”. One way to circumvent this problem is to consider the Transient Climate Response (TCR)[short-term response to greenhouse gases]. However, the TCR among AR4 models also differ by more than a factor of 2." Furthermore, the authors find that the projections vary by 30% even within the same model with the same equilibrium climate sensitivity."